If the valve is not repaired and maintained in time, it will cause leakage of the valve or leakage of the switch; the valve is not regularly overhauled and pressure tested, even if it is used for many years without cleaning, pressure testing and technical appraisal, resulting in debris deposited in the valve, close the valve, Severe oil leakage, simmering oil;

After the correct selection of the valve, it must be properly installed, maintained, and operated so that its performance can be fully utilized.

In a fluid piping system, the valve is a control element whose main function is to isolate equipment and piping systems, regulate flow, prevent backflow, regulate and drain pressure.

One of the major issues that must be considered when designing and selecting valves is the operating temperature of the valve.

The wafer type butterfly valve is one of the most common types of valves in industrial pipelines. The structure of the wafer type butterfly valve itself is relatively small. Just put the butterfly valve in the middle of the flanges at the two ends of the pipeline, and use the double stud bolts to pass through the pipeline flanges and pairs.

Soft sealing butterfly valve usually used in medicine, chemical, petroleum, electricity, textile, paper industry .Its mainly to adjust and stopped the medium in the water and gas line .Its working temperature ≤ 80 ℃.